The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2008
Filed:
Aug. 15, 2003
Yong Chen, Redwood City, CA (US);
David Hacklernan, Monmouth, OR (US);
Laurie S. Mittelstadt, Belmont, CA (US);
Yoocham Jeon, Palo Alto, CA (US);
Richard Stanley Williams, Redwood City, CA (US);
Yong Chen, Redwood City, CA (US);
David Hacklernan, Monmouth, OR (US);
Laurie S. Mittelstadt, Belmont, CA (US);
Yoocham Jeon, Palo Alto, CA (US);
Richard Stanley Williams, Redwood City, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method and mold for creating nanoscale patterns in an ion-selective polymer membrane is provided, in which a mold comprising a substrate and a molding layer having at least one protruding feature is imprinted on the ion-selective polymer membrane, thereby creating a recessed feature in the membrane. Protruding features having nanoscale dimensions can be created, e.g., by using self-assembled nanostructures as a shadow mask for etching a molding layer. In one embodiment, an imprinted ion selective polymer membrane, suitable for use as a solid electrolyte, is adapted for use in an electrochemical device or fuel cell by adding a metal catalyst to one portion of the membrane to serve as a catalytic electrode.